Crawley MacKewn Brush


179 John Street, Suite 800
Toronto, Ontario, M5T 1X4

Telephone:+1 416 217 0110
Fax:+1 416 217 0220

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Crawley MacKewn Brush LLP is one of Canada’s top corporate commercial and securities litigation firms. We are best known for our expertise in representing clients who participate in the capital markets and financial services industry. Our partners have been ranked nationally among the best of their peers. We focus on achieving the best outcome for our clients, no matter how challenging the circumstances. We apply and instill in our lawyers best practices in trial advocacy and dispute resolution in order to provide professional and skilled representation that both serves and reflects well on our clients.

Securities Litigation: 
Crawley MacKewn Brush LLP is the largest dedicated securities litigation team in Canada. We are one of only 3 firms ranked in Band 1 (the highest level) for securities litigation by Chambers. Our lawyers have successfully represented clients in some of the most significant and high-profile securities law cases in Canada. Our familiarity with the Canadian securities regulators allows us to deliver practical and current advice to resolve issues in a constantly changing regulatory environment.

Our securities regulatory practice includes investigations and enforcement proceedings brought by the Ontario Securities Commission (OSC) and the former Investment Industry Regulatory Organization of Canada (IIROC) and Mutual Fund Dealers Association of Canada (MFDA). We also have significant experience with cross-border investigations involving the Securities Exchange Commission (SEC) and other US regulators and law enforcement agencies. 

Our securities litigation practice includes primary and secondary market liability claims, claims arising out the restatement of a company’s financial statements, claims arising out of alleged fraud, claims against investment dealers and advisors in respect of allegedly problematic investment products, strategies and tax shelters, and claims against investment funds, fund managers and traders arising out of allegedly problematic trading strategies and practices.

Corporate Commercial Litigation: 
Crawley MacKewn Brush LLP is one of Canada’s top corporate commercial litigation firms. We act for public and private companies, directors, officers, shareholders, investment advisors and investors in a wide range of actions across Canada. Our lawyers have extensive experience with the litigation and resolution of corporate disputes, including disputes arising out of mergers and acquisitions, breach of contract suits, oppression claims, fraud and cyber-fraud investigations and claims, business tort claims, wrongful dismissal actions and professional negligence suits. We are frequently retained as litigation counsel to work with corporate law firms on contested shareholder meetings, takeover bids and transactions that require court approval through plans of arrangement or otherwise.


Robert Brush: +1 416 217 0822  | 

Michael Byers:+1 416 217 0886  |

Dana Carson: +1 416 217 0855  |

Alistair Crawley: +1 416 217 0806  |

Melissa MacKewn: +1 416 217 0840  |

Kate McGrann: +1 416 217 0850  |

Matthew Scott: +1 416 217 0870  |

Clarke Tedesco: +1 416 217 0884  |

Dan Thomas: +1 416 217 0773  |


Updated March 2023